Page 102

TYPICAL DIMENSIONS CHEAT SHEET 1

»» STRIPING: Solid white lines used to define conventional and buffered bike lanes are typically 6 - 8 in. wide. Diagonal lines within the bike lane buffer are common and are typically 4 - 8 in. wide stripes, placed at an angle of 30 45 degrees, every 10 ft.

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»» BIKE LANE WIDTH: Stripe bike lanes 5 - 7 ft. wide.

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»» BIKE LANE MARKING PLACEMENT: Place marking in center of lane, at beginning of lane and at periodic intervals based on engineering judgment (land use, vehicular speed etc.).

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»» BIKE LANE BUFFER WIDTH: Buffers must be defined by two white lines (typically 4 - 8 in. wide). Minimum buffer width is 18 in. If buffer is 3 ft. in width or wider, mark with diagonal striping.

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Barrier elements: 8 - ft. apart

2 5 - 7’ - Bike Lane

> 18”

10.5’ - Travel Lane

8’ - Parking Lane

»» PROTECTED BIKE LANES: Place barrier at center of buffer area, which should be a minimum of 3 ft. wide. Non-contiguous barrier elements should be placed 8 - 20 ft. apart. »» SHARED LANE MARKING »» Lateral Placement: Where parking is present, the MUTCD recommends sharrow markings be placed 11ft from the curb. If on-street parking is not present, the markings should be placed far enough from the curb to direct bicyclists away from gutters and other hazards (approx. 4 ft). On roads with a posted speed of 25MPH or less, place sharrows in center of travel lane. (not shown.) »» Spacing: Marking frequency should respond to context (land use, vehicular speed etc.) Sharrows might be 250 ft. apart on low-traffic, but high-speed routes, or 50 - 100 ft. apart along busier, slower speed streets (not shown).

102 · PROJECT APPLICATIONS

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Cheat sheet information based on NACTO Urban Bikeway Design Guide. For more detail, visit: nacto.org. Top: A demonstration planter-protected bike lane in Burlington, VT (Julie Campoli). (Note: For single-lane configurations, this design would require a barrier mountable by emergency service vehicles to be made permanent.) Bottom: A two-day buffered bicycle lane demonstration, Morgan Hill, CA (Street Plans).

Tactical Urbanist's Guide to Materials and Design v.1.0  

The only materials and design guidance for Tactical Urbanist demonstration, pilot, and interim design projects. Funded by the James L. Knigh...

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